Hi,
I though C=1 and B=8, however, the correct answer is B).
Can anyone please explain?
PS500 TEST23 #17
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1/b = b/c = c/8
1/b = b/c
Or b^2=c
b/c=c/8
or 8b=c^2
(Now substituting value of c from the first equation; wherein c = b^2)
8b=c^2
or 8b = b^2*b^2
or 8 = b^3
Thus b = 2(b can only be positive)
Now 1/b=b/c
or 1/2=2/c
Thus c = 4
Hence b+c = 2+4 = 6
Hence Choice B
1/b = b/c
Or b^2=c
b/c=c/8
or 8b=c^2
(Now substituting value of c from the first equation; wherein c = b^2)
8b=c^2
or 8b = b^2*b^2
or 8 = b^3
Thus b = 2(b can only be positive)
Now 1/b=b/c
or 1/2=2/c
Thus c = 4
Hence b+c = 2+4 = 6
Hence Choice B